package com.atguigu.com.nio.nio_3_selector;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;

/**
 * @Author: robert.song
 * @Date: Created in 2021/8/8
 */
public class Client {
    public static void main(String[] args) throws IOException {
//        获得网络通道
        SocketChannel socketChannel = SocketChannel.open();
//        设置非阻塞
        socketChannel.configureBlocking(false);
//        提供服务器端ip、端口
        InetSocketAddress inetSocketAddress = new InetSocketAddress("127.0.0.1", 6666);
//        连接服务器
        if (!socketChannel.connect(inetSocketAddress)) {
            while (!socketChannel.finishConnect()) {
                System.out.println("因为连接需要时间，客户端不会阻塞，可用做其它工作。。。");
            }
        }
//        如果连接成功，就发送数据
        String str = "hello,尚硅谷";
//        Wraps a byte array into a buffer
        ByteBuffer buffer = ByteBuffer.wrap(str.getBytes());
//        发送数据，将buffer数据写入channel
        socketChannel.write(buffer);
        System.in.read();
    }
}
